Machine for operating upon shoes



I J. GOULDBOURN MACHINE FOR OPERATING UPON SHOES HERE? 7 I l I I I l I l I l I I l l I I I l |l||lll 5; Filed Oct. 22, 192l Patented Jan. 13, 1925!,

UNITED STATES PATENT ()FFICE.

JOSEPH GOULDBOUR-N, OF LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHGE MA- CHINERY CORPORATION, OF EATER-SON, NE-VI' JERSEY, A CGRPOR-ATIO'N OF NEW JERSEY.

Application filed October 22, 1&21.

Z '0 all whom it may concern:

Be it known that I, JOSEPH GoULnBoURN,

a subject of the King of England, residing at Leicester, Leicestershire, England, have 5 invented certain Improvements in Machines for Operating Upon Shoes, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for operating upon shoes, such, for instance, as heel-attaching machines, and more particularly to those of the type in which fastenings are driven to attach a heel to a shoe from the inside. It is especially concerned with the provision of heel-engaging members capable of effectively exerting pressure upon wooden or other Louis or like heels, which have a comparatively small tread-surface and a swelling lateral surface. To deal with such heels, it is necessary to provide pressure means which engage not only the tread-surface of the heel, but also the lateral surface, generally the side at the rear. Such a heel-engaging mechanism is disclosed in Patent- No. 1,269,654, Standish, June 18, 1918, in which a member which engages the tread-surface and another member which is forked to engage the rear sloping surface of the heel, are so connected by gearing that they are balanced. This arrangement is preferably such that the tread member contacts with the heel first, and retires under the relative approaching movement between the heel supported on the shoe and the head, or like part, which carries the heel-engaging members, thus causing the other mem- 40 her to contact with the heel. In this way,

the heel is first measured by this automatic adjustment of the members to its particular dimension, and then clamped against the heel-seatsurface of the shoe. I have found is in practice that to accomplish the secure attachment to shoes of heels of the kind in question, particularly when made of wood, a degree of pressure is often required upon the rear surface of the heel which might, with so some styles or grades, cause danger of breakage if applied to the tread-surface. It is accordingly an object of the present invention to provide means whereby such a heel Serial No. 509,696.

will be held securely, without risk of damage thereto.

A feature of the invention resides in the provision in a machine for operating upon heels of the type mentioned, of means adapted to engage the heel, both upon its treadsurface and its lateral surface, and to apply an invariably greater final pressure to the lateral surface than to the tread.

A further feature of the invention consists in pressure means for a machine operating upon heels, such pressure means, comprising relatively movable members for con tact with different portions of a heel, which members are interconnected and have means for fixing them against relative movement. More specifically, the connections between the contact members may include a pinion having bearings, which are of larger diarneter than the pitch diameter of the pinion, so that upon the members both engaging the heel, further relative movement of the pressure means and shoe causes a locking action in the pinion-bearing, and the pressure applied by one of the members, preferably unyieldingly supported, is increased substantially as compared with that applied by another which is yieldingly supported.

The above and other features of the invention will be fully evident from the following description of a preferred construction of the invention applied to a machine of the type shown in the previously-med tioned patent.

In the accompanying drawing,

Figure 1 is a side elevation, partly in section, of as much of the machine as is necessary to illustrate the invention;

Fig. 2 is an enlarged sectional view 011 the line 2-2 of Fig. 1; and

shows in perspective the connecting pinion.

The shoe-supporting jack A and the opposed pressure-head B, the latter carrying the contact member lfor engaging the tread surface of a heel, and the contact member 5 arranged to bear upon its rear sloping surface, with the intermediate pinion 1 meshing with racks 2 and 3 upon the members 4 and respectively, to cause them to move relatively to one another, may be generally as shown and described in the patent already mentioned. In order that greater pressure may be obtained upon the rear surface of the heel than upon the tread when the measuring of said heel is completed, the pinion 1 is mounted in bearings of a size which produce a considerable amount of friction when force is applied thereto through the medium of the racks. In the particular arrangement illustrated, the ratio of the diameters of the pitch circle'of the pinion and its bearing surfaces are as 3 to 5. The pinion preferably has at each end of its toothed portion, cylindrical bearing disks 6 and 7 fastened to it by keys 8, which disks furnish the journals of the pinion and are received in bearings formed in the usual carriage 10,, which is adjustable upon the head 13,, and in a plate 11 fixed to the carriage. The pinion may be held in place in its bean ing-s by the racks 2 and 3 engaging it on each side between the disks, which, by their con tact with the opposite sides of the racks, act to prevent lateral displacement ofthe pinion.

With this construction, it is found that a locking action occurs as soon as any measurable degree of pressure follows the contact of the rear member 5 with the heel. Further relative approach of the heel-engaging members consequently directly increases the pressure between them; but in order that the heel may not be injured by the pressure of the member 4 upon the treadsurface, a yield is provided for said surface greater than any which may exist in the member 5, so that the result of the movement between the shoe and the heel-engaging members after the contact of the member .5 is to. increase the pressure of such member, without materially or to an injurious extent increasing the pressure upon the tread{ by the member 4. The yieldability of the member 4 is shown as furnished. by 'a block 12 of rubber, or other. resilient mate-- rial, positioned between the members and a treadsurface-engaging plate 13, which may be of metal. The plate 13 has formed upon it an upwardly-extending shank 14: arranged to slide within the member. This shank is prevented from turning in its mounting and is limited in its downward movement byla conical pointed screw 15, which enters a groove 16 in the stem, and which engages an inclined face 17 at the end of the groove.

The conical surface of the screw and the inclined face of the groove by their contact provide an adjustment by which the initial compression of the block 12 may be varied. The screw may be locked in its adjusted position by a nut 18.

As has. been indicated, the above arrangement allows of the retention of the feature of equal movement of the heel-engaging members during the measuring operation. However, the production of the difference of pressures of the members upon the heel may be obtained by other forms of conned tion, which will be apparent to those skilled in the art. I. will be obvious also that heelengaging means of the nature described may be applied to machines for performing other operations upon shoes than the attachment of heels, for instance the breasting of heels,

and it should be understood.thatthe heelengaging means may either itself apply the pressure by its movement toward the heel, or may act as anabutment to resist movement of the heel pressed against it; and references throughout this specification to pressure-applying or exerting means should 'be ronsidered as applicable to'either the function of actively applying pressure or of offer ing resistance 'to movement.

Having thus described my invention, what i claim as new and desire to secure by United States Letters Patent is:

1. Ina machine for operating upon shoes, pressure means having portions relatively movable in the operation of the machine for contact with the tread and lateral surfaces of a heel and constructed and arranged, to exert an invariably greater final pressure upon the lateral surface than upon the tread.

2. In a machine for operating upon shoes, pressure means having movable portions for contact with the tread and lateral surfaces of a heel, and means for locking the pressure-portions against movement, such pressure-portions being constructed and ar ranged tov act more yiel'dingly .upon the tread-surface than uponthe lateral surface.

3. In a machine for operating upon shoes, pressure means having relatively movable members for contact with differentportions of a heel,- connections. for moving one of said members, from another, and means con structed and arranged to cause the application of different pressures by the members to different, heel-portions. v 7

i. In a machine for operating upon, shoes, :pressure means having relatively movable members. for contact with the tread and lateral surfaces of a heel, connections for movingone of said members from another, and means constructed and arranged to cause the application of greater pressure to the lateral surface than to the tread.

5. In a machine for operating upon shoes, pressure means having relatively movable members for contact with the tread and lateral surfaces of a heel, the pressure memher for the tread-surface presenting there-- 'to a yieldable contact-surface, and'connections for movingone of said members from another.

6. In amacliine for operating upon shoes, pressure .means having relatively movable members for contact with the tread and lateral surfaces .of' a heel, and automatic means for'fixing said members against such relative movement.

Ill

7. In a machine for operating upon shoes, pressure means having relatively movable members for contact with the tread and lateral surfaces of a heel, the tread contact member being yieldable, and means controlled by their contact for fixing said members against such relative movement.

8. In a machine for operating upon shoes, pressure means having relatively movable members for contact with the tread and lateral surfaces of a heel, and means made effective upon contact of the members with the heel for locking them against movement.

9. In a machine for operating upon shoes, pressure means having relatively movable members for contact with difierent portions of a heel, and means acting upon the contact of both members with. the heel-portions for fixing said members against such relative movement.

10. In a machine for operating upon shoes, pressure means having relatively movable members for contact with different portions of a heel, and means made effective by the contact of the members with the heel for fixing said members against such rela tive movement.

11. In a machine for operating upon shoes, pressure means having relatively movable members for contact with different portions of a heel, connections for moving one of said members from another, and means co-operating with the connections for locking said members against movement.

12. In a heel-attaching machine, a pressure-head, a plurality of heel-engaging members movable thereon, movement-transmit ting connect-ions between the members, and locking means associated with the connections.

13. In a heel-attaching machine, a pressure-head, a plurality of heel-engaging members movable thereon, movement-transmitting connections between the members, and frictional locking means associated with the connections.

14. In a heel-attaching machine, a pressure-head, a plurality of heel-engaging members movable thereon, gearing connecting the members, and bearings for an element of the gearing, said bearings being provided with locking surfaces arranged to prevent movement of the gearing when pressure is exerted by the members.

15. In a heel-attaching machine, a pressure-head, a plurality of heel-engaging members movable thereon, gearing connecting the members and including a pinion, an bearings for the pinion having a greater diameter than the pitch of the pinion.

In testimony whereof I have signed my name to this specification.

JOSEPH GOULDBOURN. 

